From 1bb416aa5993c31e0683ea2f823b483e6f98d659 Mon Sep 17 00:00:00 2001
From: Dan Burton <danburton.email@gmail.com>
Date: Thu, 7 Dec 2017 13:36:44 -0800
Subject: [PATCH] Constrain stack to < 9.9.9

---
 build-constraints.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index e45249c1..7e614fb1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -958,7 +958,7 @@ packages:
         - monad-extras
         - optparse-simple
         - hpack
-        - stack
+        - stack < 9.9.9
 
     "Michael Sloan <mgsloan@gmail.com> @mgsloan":
         - th-orphans